For about 15 days a month, Alaska Airlines pilot Jim Lancaster lives in a motor home in Parking Lot B near the southernmost runway at Los Angeles International Airport.

Every four minutes, a jetliner or turboprop roars in -- 500 feet above his front door -- for a landing. The noise is so loud it forces Lancaster to pause during conversations. But he doesn't mind. Lancaster puts up with the smell of jet fuel and screaming engines to save time and money.